NUM_INSTRS_PER_CACHE_LINE
instrs->count = ALIGN(instrs->count, NUM_INSTRS_PER_CACHE_LINE);
static_assert(ALIGN(ARRAY_SIZE(instr_seq), NUM_INSTRS_PER_CACHE_LINE) ==
pad = ALIGN(instrs->count, NUM_INSTRS_PER_CACHE_LINE);